CN109333234B - Clamping device and method for small-caliber optical element - Google Patents
Clamping device and method for small-caliber optical element Download PDFInfo
- Publication number
- CN109333234B CN109333234B CN201811476382.XA CN201811476382A CN109333234B CN 109333234 B CN109333234 B CN 109333234B CN 201811476382 A CN201811476382 A CN 201811476382A CN 109333234 B CN109333234 B CN 109333234B
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- Prior art keywords
- accompanying
- small
- separator
- clamping
- optical element
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- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 235000012431 wafers Nutrition 0.000 claims 2
- 239000013078 crystal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention provides a clamping device and a clamping method for a small-caliber optical element with good stability. The clamping device of the small-caliber optical element comprises a base plate, a ceramic ring, a shape connecting plate, a stop block, an adjusting screw, accompanying and polishing sheets and a separator, wherein the number of the accompanying and polishing sheets is matched with the number of the side surfaces of the element; the number of the stop blocks is consistent with the number of the accompanying polished sheets; the accompanying throwing piece is horizontally arranged on the substrate; the side surface of the stop block is provided with an adjusting screw for fixing the relative position of the accompanying throwing piece and the element; the ceramic ring and the separator are connected together through a shape connecting plate; the center of the separator is provided with a hole for placing the stop block. The invention tightly combines the elements through the accompanying polishing sheets, can realize the rapid clamping of the small-caliber element, can adapt to the elements with different shapes and sizes, has good stability, and improves the problems of difficult control of the processing precision and low efficiency of the small-caliber element.
Description
Technical Field
The present invention relates to a clamping device and a method for an optical element, and more particularly, to a clamping device and a method for a small-caliber optical element.
Background
The optical crystal is widely applied to medicine and industrial lasers, and different crystals respectively have the advantages of good optical uniformity, high damage threshold, high frequency multiplication conversion efficiency and the like, but the optical crystal generally has the characteristics of long growth period, small size, and anisotropism, and particularly is applied to optical materials for experimental study, and has various element sizes, difficult element clamping and lower processing efficiency.
For small-caliber optical crystal elements, the traditional cold working method is mostly hand polishing or bonding disc polishing, but the precision stability of hand polishing is poor and depends on the skill of operators, and local thermal stress generated by bonding the upper disc easily causes cracking of crystal materials, particularly temperature sensitive materials such as CLBO crystals, or uneven deformation is brought to cause the precision deterioration after the elements are put down.
Disclosure of Invention
The invention aims to provide a clamping device and a clamping method for a small-caliber optical element with good stability.
The technical scheme adopted for solving the technical problems is as follows: the clamping device of the small-caliber optical element comprises a base plate, a ceramic ring, a shape connecting plate, a stop block, an adjusting screw, accompanying and polishing sheets and a separator, wherein the number of the accompanying and polishing sheets is matched with the number of the side surfaces of the element; the number of the stop blocks is consistent with the number of the accompanying polished sheets; the accompanying throwing piece is horizontally arranged on the substrate; the side surface of the stop block is provided with an adjusting screw for fixing the relative position of the accompanying throwing piece and the element; the ceramic ring and the separator are connected together through a shape connecting plate; the center of the separator is provided with a hole for placing the stop block.
Further, the lower surface of the stop block is overlapped with the base plate.
Further, the four stoppers and the accompanying throwing pieces are four, and the four stoppers enclose a rectangular shape.
Further, the ceramic ring and the separator are fixed by screws.
Further, the element is laid flat on the substrate, and the processed surface is kept coincident with the substrate.
Further, the flatness of the substrate is better than 1 μm.
Further, the accompanying polished sheets have dimensions of 20mm×20mm.
Further, the adjusting screw is made of polytetrafluoroethylene, and the accompanying polishing piece is made of nylon.
Further, the lower surface of the separator is spaced 1-2mm from the lower surface of the ceramic ring.
The clamping method of the small-caliber optical element comprises the following steps:
1) The element is horizontally placed on the substrate, and the processing surface of the element is kept to coincide with the substrate;
2) A plurality of stop blocks are connected in pairs through screws;
3) Placing the accompanying and polishing sheets on a substrate horizontally, and sequentially contacting the accompanying and polishing sheets with the elements in a clockwise or anticlockwise direction;
4) Adjusting the positions of the accompanying and polishing sheets to enable each accompanying and polishing sheet to be overlapped with one side face of the element;
5) Adjusting the adjusting screw on the side surface of each stop block respectively to fix the relative positions of the element, the accompanying throwing piece and the stop block;
6) A plurality of shape connecting plates are fixed on the ceramic ring and the separator through screws, so that the ceramic ring and the separator are connected together;
7) And (5) integrally placing the element clamped in the step (5) into a central opening of the separator, and finishing clamping.
The beneficial effects of the invention are as follows: the components are tightly combined through the accompanying and polishing sheets, so that the rapid clamping of the small-caliber components can be realized, the components with different shapes and sizes can be adapted, the universality is good, the clamping is simple, the stability is good, and the problems of difficult control of the processing precision and low efficiency of the small-caliber components are solved; the device can rapidly clamp elements (phi is smaller than 20 mm) with different specifications, is particularly suitable for special processing requirements of small-caliber optical elements, and can improve the processing quality and the processing efficiency of the small-caliber optical crystal elements; the clamping device is used for clamping special materials such as CLBO crystals and the like, and the cracking risk of elements caused by disc feeding by a thermal bonding method can be avoided.
Drawings
Fig. 1 is a schematic view of the structure of the device of the present invention.
Fig. 2 is a perspective view of the device of the present invention.
Detailed Description
As shown in fig. 1-2, the device comprises a base plate 1, a ceramic ring 2, a shape connecting plate 4, a stop block 5, an adjusting screw 6, a accompanying throwing piece 7 and a separator 8, wherein the base plate 1 is placed on an operating table, the flatness of the base plate 1 is better than 1 mu m, an element 9 is horizontally placed on the base plate 1, and a processing surface is kept coincident with the base plate 1; the number of accompanying and throwing pieces 7 is matched with the number of the side surfaces of the element 9; the number of the stop blocks 5 is consistent with the number of the accompanying throwing pieces 7; the plurality of stop blocks 5 are fixedly connected with each other by screws, and the lower surfaces of the stop blocks 5 are overlapped with the base plate 1; the accompanying and throwing pieces 7 are horizontally arranged on the base plate 1, and the positions of the accompanying and throwing pieces 7 are adjusted so that each accompanying and throwing piece 7 and the element 9 are overlapped on one side face; the side surface of each stop block 5 is provided with an adjusting screw 6 for fixing the relative position of the accompanying throwing piece 7 and the element 9; the ceramic ring 2 and the separator 8 are connected together through a plurality of connecting plates 4 and fixed through screws 3; the center of the separator 8 is provided with a hole for placing the stop 5 and reserving the adjusting space of the adjusting screw 6.
In fig. 1 and 2, four stoppers 5 and four accompanying polishing sheets 7 are shown, the four stoppers 5 are fixedly connected by screws in pairs, and the four stoppers 5 are enclosed into a rectangular shape.
The dimensions of the accompanying sheets 7 can be 20mm x 20mm to adapt to the components 9 with different specifications and dimensions; the material of the adjusting screw 6 is preferably polytetrafluoroethylene; the lower surface of the separator 8 is spaced 1-2mm from the lower surface of the ceramic ring 2; the material of the accompanying and polishing sheet 7 is preferably nylon.
When the ceramic ring 2 is processed, the ceramic ring 2 and the separator 8 can drive the element 9 and other parts to integrally rotate, and no relative movement exists between the element 9 and the separator 8 and between the element 2 and the ceramic ring 2 in the polishing process.
The clamping process of the device comprises the following steps:
1) Placing the element 9 on the substrate 1, and keeping the processing surface of the element coincident with the substrate 1;
2) The plurality of the stop blocks 5 are connected in pairs through screws;
3) Placing a plurality of accompanying and polishing sheets 7 on the substrate 1, and sequentially contacting the accompanying and polishing sheets 7 with the element 9 in a clockwise or anticlockwise direction;
4) The positions of the accompanying and polishing sheets 7 are regulated, so that each accompanying and polishing sheet 7 and the element 9 are overlapped on one side surface;
5) Adjusting the adjusting screw 6 on the side surface of each stop block 5 respectively to fix the relative positions of the element 9, the accompanying throwing piece 7 and the stop blocks 5;
6) A plurality of shape connecting plates 4 are fixed on the ceramic ring 2 and the separator 8 through bolts 3, so that the ceramic ring 2 and the separator 8 are connected together;
7) And (5) integrally placing the element clamped in the step (5) into a central opening of the separator (8), and finishing clamping, so that grinding and polishing can be performed.
Claims (8)
1. Clamping device of small-bore optical element, its characterized in that: the ceramic polishing device comprises a substrate (1), a ceramic ring (2), a shape connecting plate (4), a stop block (5), adjusting screws (6), accompanying polishing sheets (7) and separators (8), wherein the number of the accompanying polishing sheets (7) is matched with the number of the side surfaces of an element (9); the number of the stop blocks (5) is consistent with the number of the accompanying throwing pieces (7); the accompanying throwing piece (7) is horizontally arranged on the base plate (1); the side surface of the stop block (5) is provided with an adjusting screw (6) for fixing the relative position of the accompanying throwing piece (7) and the element (9); the ceramic ring (2) and the separator (8) are connected together through a shape connecting plate (4); -a central opening of the separator (8) for the placement of the stop (5); the lower surface of the stop block (5) is overlapped with the base plate (1); the flatness of the substrate (1) is better than 1 μm.
2. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the four stop blocks (5) and the accompanying throwing pieces (7) are four, and the four stop blocks (5) are enclosed into a rectangular shape.
3. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the ceramic ring (2) and the separator (8) are fixed by screws (3).
4. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the element (9) is laid flat on the substrate (1) and keeps the working surface coincident with the substrate (1).
5. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the dimensions of the accompanying throwing piece (7) are 20mm multiplied by 20mm.
6. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the adjusting screw (6) is made of polytetrafluoroethylene, and the accompanying throwing piece (7) is made of nylon.
7. The apparatus for clamping a small-caliber optical element according to claim 1, wherein: the lower surface of the separator (8) is spaced 1-2mm from the lower surface of the ceramic ring (2).
8. The clamping method of the small-caliber optical element is characterized by comprising the following steps of:
1) The element (9) is horizontally placed on the substrate (1), and the processing surface of the element is kept to be overlapped with the substrate (1);
2) A plurality of stop blocks (5) are connected in pairs through screws;
3) Placing the accompanying and polishing sheets (7) on the substrate (1) horizontally, and sequentially contacting the accompanying and polishing sheets (7) with the elements (9) in a clockwise or anticlockwise direction;
4) The positions of the accompanying and associated polished wafers (7) are regulated, so that each accompanying and associated polished wafer (7) and the element (9) are overlapped on one side surface;
5) Adjusting the adjusting screw (6) at the side of each stop block (5) respectively to fix the relative positions of the element (9), the accompanying throwing piece (7) and the stop blocks (5);
6) A plurality of shape connecting plates (4) are fixed on the ceramic ring (2) and the separator (8) through screws (3), so that the ceramic ring (2) and the separator (8) are connected together;
7) And (3) putting the element clamped in the step (5) into a central opening of the separator (8) horizontally, and finishing clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476382.XA CN109333234B (en) | 2018-12-03 | 2018-12-03 | Clamping device and method for small-caliber optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811476382.XA CN109333234B (en) | 2018-12-03 | 2018-12-03 | Clamping device and method for small-caliber optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109333234A CN109333234A (en) | 2019-02-15 |
| CN109333234B true CN109333234B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811476382.XA Active CN109333234B (en) | 2018-12-03 | 2018-12-03 | Clamping device and method for small-caliber optical element |
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| CN (1) | CN109333234B (en) |
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| CN109333234A (en) | 2019-02-15 |
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